Double-sided posters have the same artwork on the front and backside. The artwork on the ... more
back is reversed (in lighter shading). Double-sided posters are normally printed on a thicker paper than are the single-sided version. These posters are displayed in "light boxes". Because of the reverse artwork on the back, the double-sided printing gives a more life-like look to the poster when a light is placed behind it. The doubled-sided poster is the result of a very expensive printing process which involves running the initial negative through at normal colour intensity. The poster is then reversed and run back through the presses at a reduced colour indensity, such as 30% to 40% of the initial colour. This is why the artwork on the front is more colourful and detailed than the reverse print on the back. They are highly desirable by film fans and collector's worldwide.